Smart and powerful.

The six-cylinder engine.

Delivering outstanding refinement, performance and fuel economy, the straight six-cylinder engine in the BMW 128i combines exceptional power with low weight, thanks to the use of lightweight aluminum and magnesium. In the BMW 135i, the BMW TwinPower Turbo engine ensures a smoother power curve, and thanks to High Precision Injection, power delivery is not only explosive, but also extremely efficient. An impressive 300 hp propels the BMW 1 Series Cabriolet from 0 to 100 km/h in just 5.6 seconds.